Asymmetric [alpha]-amino acid synthesis / by Pasquale Razzino.

Bibliography : leaves 198-204.vi, 204 leaves ; 30 cm.Thesis (Ph.D.) -- University of Adelaide, Dept. of Organic Chemistry, 199

Mechanism of hydrogen atom transfer in the photolytic rearrangement of N-bromophenylalaninamide derivatives

Photolysis of N-bromo-N-tert-butyl-Na-phthaloylphenylalaninamide gave a 1:1 mixture of the diastereomers of 3-bromo-N-tert-butyl-Na-phthaloylphenylalaninamide. Reactions carried out with various concentrations of the N-bromoamide, and in the presence of 4-tert-butyltoluene, showed that the ratio of the product bromophenylalanine derivatives to 4-tert-butylbenzyl bromide varied as a function of the concentration of the N-bromoamide, indicating that the bromophenylalanine derivatives are formed through an intermolecular process and not by intramolecular 1,4-hydrogen atom transfer of the corresponding amidyl radical. Results of reactions of N-bromo-N-tert-butyl-Na-phthaloyl-p-methylphenylalaninamide are also consistent with this interpretation. Reactions of stereoselectively β-deuteriated derivatives of N-bromo-N-tert-butyl-Na-phthaloylphenylalaninamide established that the pro-S benzylic hydrogen of the phenylalaninamide is selectively abstracted, by a factor of ca. 3.8, in this intermolecular process

Refinement of the crystal structure of 2-hydroxyimino-2-phenyl-acetonitrile, C8H6N2O, at 173 K

Zeitschrift fur Kristallographie - New Crystal Structures2164549-55

4-[(4-methoxybenzyl)sulfanyl]benzaldehyde

The title compound, C15H14O2S, adopts an extended conformation that enables the formation of ππ and C—HO contacts in the crystal structure, leading to the formation of columns

Macromolecular Compounds Having Controlled Stoichiometry

The following invention is directed to macromolecules having controlled stoichiometry and topology, processes for their production, and applications for their use. The macromolecules have a controlled functional moiety stoichiometry and include at least one dendritic motif having a surface layer formed from at least one surface building unit and at least one subsurface layer formed from at least one building unit, the surface building unit and building units having a hydrocarbon backbone bearing a carbonyl group and at least one amine group; and at least two different functional moieties on the building unit and/or surface building unit; where functional moiety stoichiometry refers to the number and type of functional moieties